Cisco Cisco Packet Data Gateway (PDG) Guía Para Resolver Problemas
Troubleshooting the System
Taking Corrective Action ▀
Cisco ASR 5000 Series System Administration Guide ▄
OL-22969-02
Taking Corrective Action
In the event that an issue was discovered with an installed application or line card, depending on the severity, it may be
necessary to take corrective action.
necessary to take corrective action.
The system provides several redundancy and fail-over mechanisms to address issues with application and line cards in
order to minimize system downtime and data loss. These mechanisms are described in the sections that follow.
order to minimize system downtime and data loss. These mechanisms are described in the sections that follow.
Manually Initiating a Management Card Switchover
When the system boots up, the SPC/SMC installed in chassis slot eight will boot into the ―active‖ mode and begin
booting other system components. The SPC/SMC installed in chassis slot nine will automatically be booted into
―standby‖ mode dictating that it will serve as a redundant component. However, the active SPC/SMC will frequently
synchronize currently running tasks or processes with the redundant SPC/SMC.
booting other system components. The SPC/SMC installed in chassis slot nine will automatically be booted into
―standby‖ mode dictating that it will serve as a redundant component. However, the active SPC/SMC will frequently
synchronize currently running tasks or processes with the redundant SPC/SMC.
In the event of a critical failure on the SPC/SMC in slot eight, system control will be switched to the redundant
SPC/SMC in slot nine. This is a relatively seamless transition because the two are synchronized. The formerly active
SPC/SMC will then enter the standby mode allowing it to be safely replaced or restored.
SPC/SMC in slot nine. This is a relatively seamless transition because the two are synchronized. The formerly active
SPC/SMC will then enter the standby mode allowing it to be safely replaced or restored.
In the event that an issue arises that is not severe enough for the system to perform an automatic switchover, a manual
switch over can be invoked by executing the following instructions from the Exec mode prompt:
switch over can be invoked by executing the following instructions from the Exec mode prompt:
Step 1
Initiate a manual SPC/SMC switch over by entering one of the following commands:
For SPC:
For SMC:
You will receive the following prompt:
Step 2
Press to start the switchover.
Step 3
Verify that the switchover was successful by entering the following command at the prompt: